DECOMPOSITION RATES OF COVER CROP RESIDUES ON A DYSTROPHIC OXISOL
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Tropical (Online) |
Texto Completo: | https://revistas.ufg.br/pat/article/view/2165 |
Resumo: | The experiment was conducted at Embrapa Arroz e Feijão, Santo Antônio de Goiás, Goiás State, Brazil, on a dystrophic Oxisol under no-tillage system. The following species were used: Brachiaria, Brachiaria/corn consortium, pigeon pea, millet, guineagrass, sorghum, and Stylozanthes. The phytomass was cut, left on the soil and samples were collected, placed in nylon bags (litter bags), and periodically weighted to assess mass losses and decomposition rates, until 150 days after cutting. The relative losses of the residues, referred from the initial time to 150 days of decomposition, were in decreasing order: i) grasses – sorghum (80%) > guineagrass (64%) > millet (58%) > single Brachiaria (56%) and Brachiaria consortium (48%); and ii) leguminous – Stylozanthes (72%) > pigeon pea (65%). When the relative losses were projected to 360 days, the following order was found: i) grasses – sorghum and Brachiaria consortium (86%) > guineagrass (69%) > millet (65%) > single Brachiaria (62%); and ii) leguminous – Stylozanthes (83%) > pigeon pea (79%). KEY-WORDS: Tropical grasses; tropical leguminous; no-till; cerrados. |
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DECOMPOSITION RATES OF COVER CROP RESIDUES ON A DYSTROPHIC OXISOLTAXAS DE DECOMPOSIÇÃO DE RESÍDUOS DE ESPÉCIES DE COBERTURA EM LATOSSOLO VERMELHO DISTROFÉRRICOTropical grassestropical leguminousno-tillcerradosGramíneas tropicaisleguminosas tropicaisplantio diretocerrados The experiment was conducted at Embrapa Arroz e Feijão, Santo Antônio de Goiás, Goiás State, Brazil, on a dystrophic Oxisol under no-tillage system. The following species were used: Brachiaria, Brachiaria/corn consortium, pigeon pea, millet, guineagrass, sorghum, and Stylozanthes. The phytomass was cut, left on the soil and samples were collected, placed in nylon bags (litter bags), and periodically weighted to assess mass losses and decomposition rates, until 150 days after cutting. The relative losses of the residues, referred from the initial time to 150 days of decomposition, were in decreasing order: i) grasses – sorghum (80%) > guineagrass (64%) > millet (58%) > single Brachiaria (56%) and Brachiaria consortium (48%); and ii) leguminous – Stylozanthes (72%) > pigeon pea (65%). When the relative losses were projected to 360 days, the following order was found: i) grasses – sorghum and Brachiaria consortium (86%) > guineagrass (69%) > millet (65%) > single Brachiaria (62%); and ii) leguminous – Stylozanthes (83%) > pigeon pea (79%). KEY-WORDS: Tropical grasses; tropical leguminous; no-till; cerrados. O experimento foi conduzido na Embrapa Arroz e Feijão, no município de Santo Antônio de Goiás-GO, em Latossolo Vermelho Distrófico, sob plantio direto. Empregaram-se as seguintes espécies vegetais: braquiária, braquiária consorciada com milho, guandu, milheto, capim mombaça, sorgo e estilosantes. A fitomassa foi cortada, deixada sobre o solo e coletadas amostras, que foram acondicionadas em saquinhos de náilon. Periodicamente os saquinhos foram pesados, para avaliar as perdas de massa das palhadas e as taxas de decomposição, até os 150 dias após o corte. Em termos de perdas relativas de massa das palhadas aos 150 dias, tomando como referência o tempo inicial, estabeleceuse a ordem decrescente: i) gramíneas – sorgo (80%) > capim mombaça (64%) > milheto (58%) > braquiária em cultivo solteiro (56%) e consorciado (48%); e ii) leguminosas – estilosantes (72%) > guandu (65%). Quando as perdas relativas de massa são projetadas para 360 dias, tomando-se como referência o tempo inicial, estabeleceu-se a ordem decrescente: i) gramíneas – sorgo e braquiária consorciada (86%) > capim mombaça (69%) > milheto (65%) > braquiária solteira (62%); e ii) leguminosas – estilosantes (83%) > guandu (79%). PALAVRAS-CHAVE: Gramíneas tropicais; leguminosas tropicais; plantio direto; cerrados.Escola de Agronomia - Universidade Federal de Goiás2007-10-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresPesquisa experimentalapplication/pdfhttps://revistas.ufg.br/pat/article/view/2165Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 36, n. 1, Jan./Apr. 2006; 21-28Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 36, n. 1, jan./abr. 2006; 21-28Pesquisa Agropecuária Tropical; v. 36, n. 1, jan./abr. 2006; 21-281983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/2165/2116Kliemann, Huberto JoséBraz, Antonio Joaquim Pereira Bragainfo:eu-repo/semantics/openAccess2009-05-26T19:46:51Zoai:ojs.revistas.ufg.br:article/2165Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2009-05-26T19:46:51Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)false |
dc.title.none.fl_str_mv |
DECOMPOSITION RATES OF COVER CROP RESIDUES ON A DYSTROPHIC OXISOL TAXAS DE DECOMPOSIÇÃO DE RESÍDUOS DE ESPÉCIES DE COBERTURA EM LATOSSOLO VERMELHO DISTROFÉRRICO |
title |
DECOMPOSITION RATES OF COVER CROP RESIDUES ON A DYSTROPHIC OXISOL |
spellingShingle |
DECOMPOSITION RATES OF COVER CROP RESIDUES ON A DYSTROPHIC OXISOL Kliemann, Huberto José Tropical grasses tropical leguminous no-till cerrados Gramíneas tropicais leguminosas tropicais plantio direto cerrados |
title_short |
DECOMPOSITION RATES OF COVER CROP RESIDUES ON A DYSTROPHIC OXISOL |
title_full |
DECOMPOSITION RATES OF COVER CROP RESIDUES ON A DYSTROPHIC OXISOL |
title_fullStr |
DECOMPOSITION RATES OF COVER CROP RESIDUES ON A DYSTROPHIC OXISOL |
title_full_unstemmed |
DECOMPOSITION RATES OF COVER CROP RESIDUES ON A DYSTROPHIC OXISOL |
title_sort |
DECOMPOSITION RATES OF COVER CROP RESIDUES ON A DYSTROPHIC OXISOL |
author |
Kliemann, Huberto José |
author_facet |
Kliemann, Huberto José Braz, Antonio Joaquim Pereira Braga |
author_role |
author |
author2 |
Braz, Antonio Joaquim Pereira Braga |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Kliemann, Huberto José Braz, Antonio Joaquim Pereira Braga |
dc.subject.por.fl_str_mv |
Tropical grasses tropical leguminous no-till cerrados Gramíneas tropicais leguminosas tropicais plantio direto cerrados |
topic |
Tropical grasses tropical leguminous no-till cerrados Gramíneas tropicais leguminosas tropicais plantio direto cerrados |
description |
The experiment was conducted at Embrapa Arroz e Feijão, Santo Antônio de Goiás, Goiás State, Brazil, on a dystrophic Oxisol under no-tillage system. The following species were used: Brachiaria, Brachiaria/corn consortium, pigeon pea, millet, guineagrass, sorghum, and Stylozanthes. The phytomass was cut, left on the soil and samples were collected, placed in nylon bags (litter bags), and periodically weighted to assess mass losses and decomposition rates, until 150 days after cutting. The relative losses of the residues, referred from the initial time to 150 days of decomposition, were in decreasing order: i) grasses – sorghum (80%) > guineagrass (64%) > millet (58%) > single Brachiaria (56%) and Brachiaria consortium (48%); and ii) leguminous – Stylozanthes (72%) > pigeon pea (65%). When the relative losses were projected to 360 days, the following order was found: i) grasses – sorghum and Brachiaria consortium (86%) > guineagrass (69%) > millet (65%) > single Brachiaria (62%); and ii) leguminous – Stylozanthes (83%) > pigeon pea (79%). KEY-WORDS: Tropical grasses; tropical leguminous; no-till; cerrados. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-10-27 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado por pares Pesquisa experimental |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/pat/article/view/2165 |
url |
https://revistas.ufg.br/pat/article/view/2165 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/pat/article/view/2165/2116 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 36, n. 1, Jan./Apr. 2006; 21-28 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 36, n. 1, jan./abr. 2006; 21-28 Pesquisa Agropecuária Tropical; v. 36, n. 1, jan./abr. 2006; 21-28 1983-4063 reponame:Pesquisa Agropecuária Tropical (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Pesquisa Agropecuária Tropical (Online) |
collection |
Pesquisa Agropecuária Tropical (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
aseleguini.pat@gmail.com||mgoes@agro.ufg.br |
_version_ |
1789440236587057152 |